Charter Oak Mechanical is Manchester CT, Vernon CT and South Windsor CT's first choice for commercial heating, cooling and ventilation work. Reducing your energy expenses with more efficient equipment and practices can really help out your bottom line. Small businesses spend thousands of dollars every year on energy, and a substantial percentage of that energy is often being used unnecessarily. Investing in energy efficiency involves upfront costs but results in savings over time. If you would like an energy evaluation for your commercial business heating and cooling system(s), please call Charter Oak Mechanical. bbb